Odpowiedź :
Zadanie
V = 8 dm³
V = a³
a³ = 8
a = ∛8
a = 2 dm
a)
Sk = 3 · 4 · a = 12·a
Sk = 12 · 2 = 24 dm
b)
Pc = 6 · a²
Pc = 6 · 2² = 6 · 4 = 24 dm²
Zadanie
V = 8 dm³
V = a³
a³ = 8
a = ∛8
a = 2 dm
a)
Sk = 3 · 4 · a = 12·a
Sk = 12 · 2 = 24 dm
b)
Pc = 6 · a²
Pc = 6 · 2² = 6 · 4 = 24 dm²